JPH0625022Y2 - Display element using light emitting diode - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a long-life display device that replaces an incandescent lamp using a plurality of light emitting diodes as light sources.

[Conventional technology]

Conventionally, a large number of incandescent light bulbs that use a filament as a light source have been used in various information boards and lighting devices. In addition, a plurality of light emitting diodes are arranged and fixed on a substrate, wiring is connected on the surface of the substrate and then fixed by a base shell, which is sealed in a glass bulb or a transparent material to form a single lamp. Are known.

[Problems to be solved by the device]

However, the conventional incandescent light bulb not only has a short life, but also needs to perform periodic inspections and maintenance work as often as possible in order to cope with disconnection and other accidents depending on the equipment used. Further, in the above fixed lamp using a large number of light emitting diodes, not only is it troublesome in assembling work such as fixing work by the base shell, but it is not always practical in terms of cost.

The present invention has been made in view of the above problems, and uses a plurality of light emitting diodes, has a long life with a low rate of accidents such as disconnection as a light source, is easy to handle, and is used in place of a conventional incandescent light bulb. The present invention proposes a display element using a light emitting diode that can be manufactured and is easy to manufacture.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, a display device using a light emitting diode according to the present invention comprises a plurality of display elements arranged and fixed on a substrate from a front opening in a lamp case having a base and a contactor on the rear side. Each of the light emitting diodes is inserted and housed, each head is projected toward the front of the opening edge of the lamp case, and the resin or the rubber is inserted while inserting the projecting portions into the holes provided corresponding to the arrangement of the light emitting diodes. A holder made of metal or the like is attached and sealed to the opening of the lamp case, the head of the light emitting diode is projected from each hole of the holder, and the lead portion of the light emitting diode is connected between the base of the lamp case and the contact. The gist is that it is configured by circuit connection.

[Action]

When assembling the display device according to the present invention, a plurality of light emitting diodes can be easily fixed in the lamp case by covering the opening edge of the lamp case with the holder and mounting the light emitting diodes by the holder. Improves ease of assembly such as position and mounting direction.

In addition, since the light emitted from the light emitting diode is efficiently projected directly into the outside air from the light emitting head projecting from the front opening edge of the lamp case, there is no decrease in luminous intensity, and the heat conducting function of the holder Accordingly, the temperature rise of the light emitting diode can be prevented.

Therefore, like the conventional incandescent light bulb, it can be detachably attached to various information boards and sockets of lighting equipment for use.

〔Example〕

Hereinafter, embodiments of a display device using a light emitting diode according to the present invention will be described with reference to the drawings.

In the drawings, 1 is a lamp case, which is provided with a base 2 and a contactor 3 on the rear side. A plurality of light emitting diodes 5 arranged and fixed on the substrate 4 are housed in the lamp case 1 from the front opening thereof, and the heads of the respective light emitting diodes 5 are projected slightly toward the front of the opening edge of the lamp case 1, and Between the lower end portion of the light emitting diode 5 and the substrate 4, a space 7 having a predetermined interval determined by the length of the lead portion 6 of the light emitting diode 5 is formed. The front opening of the lamp case 1 is covered with a holder 9 made of resin, rubber or the like having a plurality of holes 8 penetratingly provided corresponding to the arrangement of the plurality of light emitting diodes 5. The head of the lamp 5 penetrates the hole 8 of the holder 9 and projects to the outside thereof, and is fixed to the opening edge of the lamp case 1. In this case, a step portion 10 for locking the substrate 4 from the inner side of the lamp case 1 is provided on the inner peripheral surface of the lamp case 1, and the light emitting diode 5 is provided on the inner peripheral surface of each hole 8 of the holder 9 for holding each light emitting diode 5. By providing a step portion 11 for locking the holder 9 from the outer side of the holder 9, the holder 4 is fixed to the opening edge portion of the lamp case 1 and the substrate 4 and a plurality of light emitting elements arranged on the substrate 4 are provided. The diode 5 can be completely pressed and fixed in the lamp case 1. The lead portion 6 of the light emitting diode 5 is connected to the substrate 4 by wiring, and then connected to the base 2 and the contact 3 of the lamp case 1 by circuit connection. If desired, the hood 12 may be provided at the opening edge of the lamp case 1.
It is also possible to attach and detach freely.

[Effect of device]

The display device using the light emitting diode according to the present invention can be freely attached to and detached from sockets provided in various information boards and lighting devices, and can be used as a light source in place of a conventional incandescent light bulb. Moreover, the assembling work is extremely simple, no special skill is required, and efficient assembling work is possible.

In addition, since the opening edge of the lamp case and the components of the light emitting diode are sealed with a holder made of resin or rubber, it has excellent waterproofness inside the lamp case and has a very long life as a display element. The effect obtained by the implementation of the present invention is extremely great, such as saving the trouble of maintenance and inspection.

[Brief description of drawings]

The drawing is a partial vertical sectional view of a display device using a light emitting diode according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Lamp case, 2 ... Base 3 ... Contact, 4 ... Substrate 5 ... Light emitting diode, 6 ... Lead part 9 ... Holder

Claims (1)

[Scope of utility model registration request] 1. A plurality of light emitting diodes arranged and fixed on a substrate are inserted and housed in a lamp case having a base and a contactor on a rear side from an opening on a front side of the lamp case, and respective heads of the lamp case. A holder made of resin or rubber is attached and sealed to the opening of the lamp case while projecting to the front of the opening edge and inserting the projecting portion into a hole provided corresponding to the arrangement of the light emitting diodes. A display using a light emitting diode, characterized in that the head of the light emitting diode is projected from each hole of the holder, and the lead portion of the light emitting diode is circuit-connected between the base of the lamp case and the contact. element.